Question
Differentiate between rods and cones.

Answer

Rods and cones:
  Rods   Cones
1. Rods help in twilight vision. 1. Cones help in colour vision.
2. They have visual purple pigment called rhodopsin. 2. They have visual violet pigment called iodopsin.
3. Rods are the photoreceptor cells of the retina that are sensitive to dim light. 3. Cones are the photoreceptor cells of the retina that are sensitive to bright light.

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